(*
 * This file is part of orpc, OCaml signature to ONC RPC generator
 * Copyright (C) 2008-9 Skydeck, Inc
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the Free
 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
 * MA 02111-1307, USA
 *)

(* 'b is always exn but the dummy param lets us pass in {of|to}_exn *)
type ('a, 'b) orpc_result = Orpc_success of 'a | Orpc_failure of exn

let pack_orpc_result f =
  try Orpc_success (f ())
  with e -> Orpc_failure e

let pack_orpc_result_async f k =
  try f (fun r -> k (Orpc_success r))
  with e -> k (Orpc_failure e)

let unpack_orpc_result v =
  match v with
    | Orpc_success v -> v
    | Orpc_failure e -> raise e
